How To Check Ac Tonnage From Model Number. Up near the top of the label, you’ll see the model number (m/n) and serial number (s/n). If your system happens to not have the btu or the tons information listed, locate the model number on the label.
Go outside to the condensing unit and look for a data plate mounted to the side. If your system happens to not have the btu or the tons information listed, locate the model number on the label. 18, 24, 30, 36, 42, 48, or 60.
The label will state the manufacturer, model number and serial number.
Find the model number on your label. Up near the top of the label, you’ll see the model number (m/n) and serial number (s/n). What does a model number tell you? To determine the ac tonnage using your unit’s model numbers, just follow these steps.